igb: loopback bits not correctly cleared from RCTL register

This change forces the bits to 0 by using an &= operation with an inverted
mask of all options instead of using an |= with a value of 0.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/net/igb/igb_ethtool.c b/drivers/net/igb/igb_ethtool.c
index 8e9d295034ff..d5efbcc49067 100644
--- a/drivers/net/igb/igb_ethtool.c
+++ b/drivers/net/igb/igb_ethtool.c
@@ -1339,8 +1339,9 @@ static int igb_setup_desc_rings(struct igb_adapter *adapter)
         wr32(E1000_RDLEN(0), rx_ring->size);
         wr32(E1000_RDH(0), 0);
         wr32(E1000_RDT(0), 0);
+        rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC);
         rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 |
-                E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
+                E1000_RCTL_RDMTS_HALF |
                 (adapter->hw.mac.mc_filter_type << E1000_RCTL_MO_SHIFT);
         wr32(E1000_RCTL, rctl);
         wr32(E1000_SRRCTL(0), 0);